diff --git a/dev_requirements.txt b/dev_requirements.txt
index 9d5d7e4e..7b3236bd 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -2,3 +2,4 @@
 
 nose
 coverage
+mock
diff --git a/setup.py b/setup.py
index 3898a305..e46584f7 100644
--- a/setup.py
+++ b/setup.py
@@ -16,6 +16,7 @@ install_requires = [
 test_requires = [
     'nose',
     'coverage',
+    'mock',
 ]
 
 setup(